I have a huge ploblem with my 07 cobalt ss/sc I got it in october and since then I have been getting ah random misfire and I still dont know what it can be, any one gotten somenthing simillar...some help please I would like to cure my bebe from these problem

 

Welcome, and what is the code #

 

I get ah p0300 code

 

Hey man im in elpaso as well

 

cbrenly09(Hey man im in elpaso as well)
what side of the town are u??

 

Hey welcome to the forums am local to you but you may want to check your plugs, you could have a clogged cat (depending what your boost gauge is reading). There a few other things but i would start with that

 

im boosting 15psi, and i was thinking on that but not really shure to do it,
oh by the way i have a Injen CAI, H/E dont know brand, heades also unknow brand, and not really shure if injectors are bigger or stock ones.
and a big question how can i check if my cat is clogged??
some help please and thanks

 

I'm on the northeast by trans mountain

 

See if you have the stock pully on it still, but is your boosting 15psi on a stock pulley i think your cat is clogged, take pictures and upload them of under the hood

 

noh nice im on the west by anthony, watt color and year is your balt?

 

yeah is the stock pulley, so then it may be that, and watt cat do u recomended to change??
but why doesnt the computers detect that??
sorry for to much asking i just want to get informed well,
okk i'll do that and post the pics

 

The computer did detect it, thats why you got the code as far as replacement, get whatever you like. Just make sure you can pass inspection if you go catless

 

okk thanks man, i will do that next
but if i change the cat and keep running the same pully it will cause the problem againg woulnt, so i think i have to change the pulley??
and i'll probably post the piccs tomorrow so u can help me

 

No you will ot need to change the pulley our car (supercharged) our know for getting clogged cats. Just get it replace or order an aftermarket downpipe from ZZP.

 

Ah okk thats good to hear thats, anyways im planning on changing de pulleys to get more power, yeah I think thats will be the best option to do,

One las question, how do u post pics here??

 

Silver 09 ss

 

10' black ss lower valley low boost 14psi

 

My old cobalt ss went to a dealership out in la paso tx and got sold

 

Wat year and color was yours, I bougth mine of ah car lot but he got it from ah dealer from el paso

 

david we need to ride out sometime when i get my new car

 

07 black Ss/Sc it had a cracked lower front bumper lip

 

Maybe it can be, mines a 07 ss/sc black, fisrt saw it online from the dealer and it had the bumper replace, and they paint all, watt t other things it had yours, like mine had the spoilers black with white and low miles

 

All of us ss guys should get together sometime.

 

The mod mine had
2.8 Pulley
60lbs injectors
Hp tuned
Badmab header

With a screwed up idle and jumped around at idle

It was all black and wingless when i traded it in

 

OP - If you have 60# injectors, they often idle like crap and throw the p0300 code. Won't cause any real problems if the CEL is thrown at idle just annoying. A tune could solve your problem if you find an experienced tuner.